January Weather in Hilo

Last updated: March 2, 2024

The weather in Hilo, United States, during January is characterized by an average temperature of 21°C (71°F). Highs can soar to 24°C (76°F), while lows may dip to 19°C (66°F). Typically, the humidity level in Hilo throughout January hovers around 79%.

19°C (66°F)

Minimum temperature

21°C (71°F)

Average temperature

24°C (76°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In January, Hilo averages 158 mm (6.2 inches) of rainfall, typically over the course of 20 rainy days. The month enjoys an average of 11 hours 4 minutes of daylight, with the sun shining for approximately 6 hours 49 minutes each day. Additionally, there is a 41% probability of sunny days during this period.

158 mm (6.2 inches)

Precipitation

20 rainy days

Rainy days

6 hours 49 minutes

Sunshine hours

41%

Chance of sun

UV Index

In January, the UV Index in Hilo reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 3 5 7 8 8 7 4 2 1 1 0
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Hilo's Climate with Cities Worldwide